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ELECTRIC CIRCUITS

Electric Circuits
A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is

 f0 / 2.
 f0 / 4.
 2f0.
 still f0.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
Can a 250 V, 5 A single way switch be used in place of a 250 V, 15 A Switch?

  Yes.
  Single way switch doesn operate at such current ratings.
  Single way switch doesn exist.
  No.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 11 W.
 21 W.
 24.5 W.
 1 W.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
For the resonance circuit ω0 = 105, Q = 50, R = 400 Ω the value of C is

 1000 pF.
 125 pF.
 250 pF.
 500 pF.

ANSWER DOWNLOAD EXAMIANS APP

Electric Circuits
An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are

 50 Ω and 200 Ω.
 40 Ω and 200 Ω.
 40 Ω and 40 Ω.
 25 Ω and 5 Ω.

ANSWER DOWNLOAD EXAMIANS APP
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